Teams of trained first responders and readily available equipment dramatically improve the odds of survival…

The Untrained Public’s Ability to Apply the Layperson Audiovisual Assist Tourniquet vs a Combat Application Tourniquet: A Randomized Controlled Trial
Although the Stop the Bleed campaign’s impact is encouraging, gaps remain. These gaps include rapid skill decay, a lack of easy-to-use tourniquets for the untrained public, and training barriers that prevent scalability.
Source: journals.lww.com